Knitting-machine.



W. W. BUBSN.

KNITTNG MACHINE.

APPLIUMIUN FILED 52511110, 190B.

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WILSON WORTH BURSON PATENT OFFICE.

, OF ROCKFORD, ILLINOIS.

KNITTING-MACHINE.

Application med September To au whom it may concern:

Be it known that 1, WILsoNWoR'rH BonsoN, a citizen of the United States,residing in Rockford, in the county of Winnebago and State of Illinois,have invented a new and useful ln'iprovement in Knitting-Machines, of`.vhich the following is a specification.

This invention relates to that class of knitting machines known asstraight knitting machines, the same having two parallel rows of needlesmounted on suitable frames, with an opening between them for the knitfabric to pass through.

My object in the invention `has been to provide an improved and quickacting mechanism whereby the pattern cylinders may control thepositioning of the needles, and its nature is fully disclosed in thedescription thereof given below and illustrated 1n the accompanyingdrawing forming a part of the description, and in said drawin s, Figure1 is a partial side elevation of tie machine embodying my invention.Fig. 2 is a section thereof on the line Q-L of Fig. l. .F 3 is a.iartial cross section of `the machine showingthe needle mechanism and aportion of the pattern cylinder, and Fig. 4 is a section on the line 4-4of Fig. 3. Fig. 5is an elevation of one of the division plates, and'Fig.6 a section 'on the line tis-6 of `F ig. B.

In said drawing, 5, 5 represent portions of the frame of the machine,and yrepre` sents the base bar and 7 and 8 the spacing bars fdrmin r theneedle beds.

0 is one oia theneedles, the series o( which are supported in the bedsbetweenjwhat are therefrom' new knownas'division plates 10, and areprojeeted into acting position and withdrawn by'jacks 1l, the upper endsof whichhnve notc'hes adapted to enga e the .ends of 'the iieedis, ass'hownliatl ig. l The jacks upon their uppez-edgesbaye lugs 12 which areengaged by `mf1deeices 13 et longitudine ly mov brits 14, traveling inWays formed e pacing barsl and by tlrese cam bars taie slid axidoutsothat` they yxfjthefneedleslogitudnally into and ont 'ofit e M ir actingpositions. The cam devices of the bars 14 will be understood Vfrom invapplication' No. 408,902 tiled January 2n 1908. Abo@ each needle isarller )late 15 arrangedy endwise between .the wel plates and provenSpecication o! Letters Patent.

ting vertical movermmt` the` Patented Dec. 21, 190g.

10, 1908. Serial No. 452,464.

I needles.

position by rooves form 1n the marinier usual in these mac `:l The uppersurfaces of the basebarstiat their entrance in transverse their frontedges are )rovided withlralsd.

surfaces 1G. This s'ur in it in proper p needles to enable them to holdthe 'noodles eqnidistant from each other, the needles after they havebeen projected beyond the division plates. also assist in shedding theneedles in knitting.

ace has grooves. (uitV loop over Ythe The inclined surfaces at the rearof said base bars are also provided with rooves 17 runninglongitudinally as plainly shown, adapted to engage the lugs 18 formed onthe under and corresponding edges of the division plates. The divisioniplates are further secured in position by uide rods 19 extending throughthe series o plates, and by end of the plates, such notches over bar 7this construction supporting the rear 3S S8011 t),

trollers are gnidedin their,`vertical` movements by the `guitlirougli-`elongated openings in them, Yand are .like-the vibratingplayed in which they hav@ large 'openings into which the them allnecessary freedom of longi tions at the mouth of the openings n adaptedto rise and depress the controllers are raised and depressed, Thecontrollers all have feet 2T adapted to The divisionplates are stayed ined in the base and s acinfg bars and to guideend of the platesvertically and preventing The spaeingbar 8 isY as at 22,.?to;gve

The conlevers heretofore emjacks enter and which V`allows y tndinalmovement and at the' same time the' projecthe jacks when A ositionrolatlvehto` the,

The grooves notching the rear l 2O ,and entering y. the rib 21 of thespaengg de rods/ 19 Whicliwpass enter the openings 28 in the patterncylinder Y lever 39 and operates the yarn guides. There are two of thepins 35, and they are located aS shown so that they rock the shaft ateach end of the stroke of the crosshead, the rocksma er than` ing of theshaft causing the lifting of the controllers so that they are all freedfrom the pattern cylinder. As the cross head reverses its motion almostimmediately after liftin the controllers, the rock shaft will then efree to rock back to its normal position, and allow the controllers tofall back, such of them as are over o enings 28 in the pattern cylinderentering t e same and carrying their corresponding jacks down out ofengagement with the cams 13, and the others resting upon the surface ofthe cylinder and continuing their corresponding jacks in service. Bythis construction the controllers are rendered quick in their movementsso that theneedles are correspondingly quiekened, Vand the machine isrendered capableo more work than machines previousl used. gheopenings'28 can be made eretofore, and be arranged in such closeproximit to each other as to permita material re uction in the size andwei htof the pattern cylinder.

Tie lever 39 is joined to va crank gear wheel 40 receiving povler from apinion 4l,

- and the pattern c Y11nd r is driven by a gear -42 on the same afttherewith.

It will be understood that mechanism such as that described forcontrolling and actuating the needles is employed upon both sides of thework.

The recess 22 in addition to ivin room to the front ends of the jacks Wen t ey are depressed, serves the further and very useful purpose ofpreventing the needles from being drawn orward by the yarn, when thejacks are out of action.

I claim g- 1. In a. strai ht knitting machine, the combination wit theneedles, the jacks and the pattern cylinder, of controllers normally incontact with the pattern cylinder and into which controllers the jacksenter and by which they are positioned, and means independent of thepattern c linder for liftin said controllers vertical y from thecylintgler at each stroke of the yarn guides.

2. In a strai ht knitting machine, the combination with the needles, thejacks and the pattern cylinder, of controllers normally in contact withthe pattern cylinder and into tically from t e cylinder, and individualsprings for forcing the controllers to the" cylinder.

4. The combination with the needles, the 'acks, and the pattern cylinderadapted to e engaged by the controllers, of vertically movingcontrollers receiving the jacks and positionin them, a rock shaft oerated intermittent and independently o the cylinder, and a apted tolift the controllers vertically from the cylinder, and individual sprins for forcing the controllers to the cylin er.

5. The combination with the needles, the

ljacks and a pattern cylinder adapted to be engaged by controllershaving a vertical movement and actin to receive the jacks and toposition them y such vertical movement, of said controllers, means otherthan the cylinder for momentarily lifting all of the controllersvertically to free them from the cylinder, and means for retracting themtoward the cylinder.

6. The combination with the needles and the pattern cylinder, of thejacks operating the needles, the vertically sliding controllers normallyin contact with the pattern acks with the actuating cam and their reeasetherefrom, said cam, and, means independent of the cylinder for liftin"the controllers vertically from the cylin er at the conclusion of theyarn guides stroke.

7. In a knitting machine needle bed, the base bar and the spacing bars,`in combination with division plates stationaril sured ,in the'spacingbars, and the control ers movabiypositioned between the division plates,and guide rods passing through both the plates and the controllers.

8.'Tl1e combination with the jacks of the spacing ba1s'8 located overthe forward ends of the Jacks and having longitudinal grooves givingroom to the jacks in their changing ositions, and holding the needlesfrom belng drawn forward by the arn.

I .//VVILSON WOR H BURSON.

Witnesses:

H. M. MUNDAY, EDW. S. EvAnTs.

cylinder and causing the engagement of the

